NEESR-SD: Development of a Real-Time Multi-Site Hybrid Testing Tool for NEES

该奖项是NSF 08-519项目招标George E. Brown, Jr.地震工程模拟（NEES）研究网络（NEESR）竞赛的结果。该项目将利用利哈伊大学和伊利诺伊大学厄巴纳-香槟分校的NEES设备站点。该NEESR-SD项目的目标是开发、检查、实施和演示强大而精确的同步控制工具，这些工具提供了在NEES框架内进行实时、多站点实验和模拟测试的能力。进行实时、多站点实验和模拟测试的能力将使NEES能够充分发挥其作为不同设备站点分布式网络的潜力。在多个NEES设备站点之间进行地理分布的实时测试，不仅需要不同的NEES实验设施，所有这些设施都具有独特的实验和模拟能力，而且这样做还将使整个地震工程界具有不同背景的利益相关者聚集在一起。这种创新的测试技术将允许实现更大和更复杂的实验，并提供以前无法获得的动态加载条件的实验信息。该项目将开发仿真控制算法，以实现实时、多地点实验，并检查这些算法对网络延迟的敏感性，以及模型参数的测量噪声、可变性和不确定性。计划使用一个小型系统进行一系列测试，以开发和检查概念，并通过全物理振动台测试验证这些方法。将开发一个基于NEES实时数据查看器（RDV）的用户界面工具，以方便进行多站点混合测试。将在全尺寸NEES设备上进行大规模、实时、多站点实验，以演示这些方法在NEES网络中的应用。将开发一种基于互联网的教育和外联工具，以获取小规模和大规模测试的实际测试数据，向更大的社区展示在这项研究中开发的工具和方法。项目结束时将在利哈伊新能源环境设施举办一个培训讲习班，通过在新能源环境设施和结构控制社区内进行混合测试，促进新能源环境设施的分散使用。结果将通过NEES网络基础设施，包括NEEScentral、NEESforge和RDV传播。

This award is an outcome of the NSF 08-519 program solicitation George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Research (NEESR) competition. This project will utilize the NEES equipment sites at Lehigh University and the University of Illinois at Urbana-Champaign. The goal of this NEESR-SD project is to develop, examine, implement, and demonstrate robust and accurate synchronization control tools that provide the capability to conduct real-time, multi-site experiment and simulation tests within the NEES framework. The ability to conduct real-time, multi-site experiments and simulation tests will allow NEES to reach its full potential as a distributed network of diverse equipment sites. Geographically-distributed, real-time testing between multiple NEES equipment sites will engage not just the diverse NEES experimental facilities, all with unique experimental and simulation capabilities, but in doing so will also bring together stakeholders with diverse backgrounds throughout earthquake engineering community. This innovative test technique will allow for larger and more complex experiments to be realized and provide experimental information from dynamic loading conditions previously not available. The project will develop simulation control algorithms necessary to implement real-time, multi-site experiments and examine the sensitivities of these algorithms to network delays, as well as measurement noise and variability and uncertainty in model parameters. A series of tests are planned using a small-scale system to develop and examine concepts and validate these methods with a fully physical shake table test. A user interface tool, based on the NEES Real-time Data Viewer (RDV), will be developed to facilitate conducting multi-site hybrid tests. Large-scale, real-time, multi-site experiments on full-scale NEES equipment will be conducted to demonstrate the application of these methods within the NEES network. An Internet-based education and outreach tool that accesses actual test data from the small-scale and large-scale tests will be developed to demonstrate the tools and methodologies developed within this research to the greater community. A training workshop will be held at the Lehigh NEES facility at the end of the project to promote the distributed use of NEES facilities through hybrid testing within both the NEES and the structural control communities. The results will be disseminated through NEES cyberinfrastructure, including NEEScentral, NEESforge and RDV.